You know the feeling when your skin crawls from too much closeness, when your throat aches from too much laughter, and the way a pair of eyes can pierce your heart straight through each ventricle like a champagne explosion in your chest? You know that lip biting frustration that slips under your collar and wriggles down into your stomach, burrowing a hole so deep your teeth automatically clench? Or the soft lips that you love contrasted with those long make-out sessions you crave? You know close quarters and quiet corners? Then you know the madness of being in love.